The WORST episodes of Grand Blue Dreaming
Every episode of Grand Blue Dreaming ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Grand Blue Dreaming!
A college student joins the local diving club after meeting some rowdy upperclassmen. New adventures in booze and the ocean await.


#2 - TV Special
Season 3 - Episode 5 - Aired 8/4/2026
A TV crew has arrived to film a special at Dolphin, and the gang gets roped into it!

#3 - The Oceans of Palau
Season 3 - Episode 4 - Aired 7/28/2026
The group eagerly arrives in Palau, where someone they know well is waiting for them.

#4 - Saving Private Passport
Season 3 - Episode 3 - Aired 7/21/2026
Iori must navigate Shiori, the tourists, and the stalker on the loose to get his hands on his passport.

#5 - Homecoming
Season 3 - Episode 2 - Aired 7/14/2026
Iori and the gang head to his family home to grab his passport for the upcoming trip.

#6 - Unfinished Business
Season 3 - Episode 1 - Aired 7/7/2026
Summer is coming to an end, and the older kids at the club want to do the things they still have left to do.

#7 - Now We're Even
Season 2 - Episode 12 - Aired 9/23/2025
Iori learns that a lot will soon change for the club.

#8 - Let's Go to an Uninhabited Island!
Season 2 - Episode 11 - Aired 9/16/2025
The gang heads out to a camping site on an uninhabited island, only to run into some unexpected faces.

#9 - Movie Date
Season 2 - Episode 10 - Aired 9/9/2025
Iori is asked out on a movie date, and he hears some news that complicates things.

#10 - Are You In Love?
Season 2 - Episode 9 - Aired 9/2/2025
All sorts of misunderstandings ensue as attraction comes into the equation.

#11 - Coworkers
Season 2 - Episode 8 - Aired 8/26/2025
Iori runs into a familiar face at his new part-time job, and this is going to complicate matters!

#12 - The Charpy Impact Test
Season 2 - Episode 7 - Aired 8/19/2025
Iori and his class need to cooperate and do a very dangerous experiment together.

#13 - Back to the All-Girls College
Season 2 - Episode 6 - Aired 8/12/2025
After being expelled from college, the boys devise various plans to get back into it.

#14 - First Time at a Women's University
Season 2 - Episode 5 - Aired 8/5/2025
Iori and Kohei attend the All-Girls College Festiva, but the girls ask them to help out at the cafe.

#15 - Ticket Scramble
Season 2 - Episode 4 - Aired 7/29/2025
Aina has a spare ticket for the Oumi Women's University Festival, and it causes all sorts of chaos.

#16 - Brother
Season 2 - Episode 2 - Aired 7/15/2025
Shiori's here and on a mission! How will Iori handle this situation?

#17 - Sister
Season 2 - Episode 1 - Aired 7/8/2025
Iori receives a letter from his little sister back home. Note: This is still a diving anime.

#18 - Truth or Dare
Season 1 - Episode 9 - Aired 9/8/2018
Iori tries to setup another mixer for his friends, and wants to ask Chisa to introduce her friends so they can all play truth or dare. Nanaka and Azusa also get involved, and they all begin a vicious game of attack and defense! However, Iori doesn't have enough money for their trip. Iori and the gang head to a diving shop to buy diving gear, but find out there's still a lot they don't know.

#19 - Men's Cocktails
Season 1 - Episode 8 - Aired 9/1/2018
The members of the diving team start working part-time jobs to pay for their trip to Okinawa. However, Iori and Kohei end up spending all their earnings on drinking. Meanwhile, Kotobuki is working hard as a bartender, and his boss lets Iori and Kohei try it out too. However, these two idiots don't know how to make cocktails, and end up creating some dangerous new drinks!

#20 - First Buddy
Season 1 - Episode 6 - Aired 8/18/2018
Inori and Kohei get through their exams by cheating. Meanwhile, PaB throws a welcome party for Aina, their new member. Aina was looking forward to getting a new start to college life, but discovers that no one in the club is normal! Nevertheless, the club members are serious about diving and have the new members learn basic hand signals and dive in pairs. However, Iori gets paired up with Chisa.

#21 - Otori
Season 1 - Episode 12 - Aired 9/29/2018
For the last half of their trip, the Peek-A-Boo members arrive in Miyakojima. Everyone goes for a serious dive into the majestic sea with the exception of Iori, who couldn't obtain his license. Everything is magical with the stunning coral reef, colorful fishes and sea turtles, until the members engage in PaB-style Otori (a drinking custom of Miyakojima), which turns things into a living hell...

#22 - You Have the Wrong Idea
Season 1 - Episode 11 - Aired 9/22/2018
"You might be the only one who can't pass the license test," Nanaka says to Iori, pointing out what he's bad at. To avoid being made fun of by Kohei and Nanaka, he practices secretly. Yet, while practice, all he thinks of is how to poison them at dinner. He avoids being pairs with Kohei and Aina and gets Chisa to promise to help him with practice. But, these interactions cause misunderstandings...

#23 - Underwater
Season 1 - Episode 2 - Aired 7/21/2018
After a cutthroat battle with Kohei Imamura, a handsome otaku from school, Iori ends up joining the Peek-a-Boo diving club. Iori arrives home worn out from the day, but perks up when he hears about a party with a women's college. However, his cousin Nanaka won't allow him to stay out three nights in a row, so Iori tries to show her he's an independent man to get her to let him go.

#24 - Deep Blue
Season 1 - Episode 1 - Aired 7/14/2018
When Iori Kitahara heads off to college, he decides to live at his uncle's dive shop in Izu. Iori is looking forward to experiencing college life, but ends up running into a group of tough guys playing strip rock-paper-scissors. Iori gets dragged into the diving club's crazy shenanigans and ends up spending his first day in college wearing nothing but a pair of underwear.

#25 - Arrival in Okinawa
Season 1 - Episode 10 - Aired 9/15/2018
The Peek-a-Boo members arrive in Okinawa! After checking out their gorgeous vacation home, the group decides to head to the beach. In order to make sure the guys don't try to get naked, they decide to go to a popular beach with lots of visitors, where they have some wild fun on a banana boat. However, Iori loses their banana boat contest and ends up having to sleep in Nanaka and Azusa's room!